Cultivator.



No. 70mm. Patented may 27, |902.

J. B. AnTHoLoMEw. q.

GU LTIVATOR.

(Application filed Jun@ 6, 1898.)

(No Model.) 2 Sheets-Sheet I.

No. 701,003. Patented May 27, |902.

J. B. BARTHOLOMEW. f

GULTIVATDR.

(Application led June 6, 1596.)

(No Model.) 2 Sheets--Sheet 2 IINrrnp STATES lPATENT muon.

JOHN l. BARTHOLOMEtV, OF PEORIA, ILLINOIS, ASSIGNOR TO AVERY MANUFACTURING COMPANY, OF PEORIA, ILLINOIS.

CU LTIVATOR.

SPECIFICATION forming part of Letters Patent No. 701,003, dated May 27, 1902.

Application fled June 6, 1896.v Serial No. 594.580. (No model.)

To [ZZZ who/r1. rit may 0077.007172.:

Be it known thatl, JOHN B. BARTHoLoMEw, a citizen of the United States, residing at Peoria, in the county of Peoria and State of Illinois, have invented certain new and useful Improvements*A in Cultivators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Figure lis a perspective of a cultivator embodying my improvements. Fig. 2 is a side elevation. Figs. 3 to 8 are perspectives of details. Fig. 9 is a side view of the beam holding and lifting devices.

In the drawings, A A indicate the groundwheels; B, the crank-axle; C,the tongue; I) D, the longitudinal frame-bars, and D the seat. These may be of any well-known or of any preferred form.

EEindicate the beams ordrag-bars,to which are attached the standards or shanks for the shovels. They are pivotally connected with the frame, preferably by means of clips G, secured to the downward and inward turned parts f of the cross-bar at F. The forward pivots of the beams or drag-bars are shown at e. The beams are supported, lifted, and lowered in the following manner:

II is a bar or radius-arm supported upon and extending upwardly from the transverse part of the crank-axle I3. Preferably this bar 1I is pivoted to the ears i on a plate I,

which is clamped to said axle B, as shown in Fig. 9. The bar II is formed with a hook or projection h at the upper end and an arm or extension 7L at its-lower end, each for a purpose Vto be described.

.I is a bar or suspension-rod pivotally connected to a beam or drag-bar E and extending up to the upper end of the bar II. Preferably it is'formed of a tube or pipe clamped at its lower end in the bifurcated support J', whichis secured to the pivot-plate .Hand at the upper end is provided with a ferrule having a projection formed with a hook j and an aperture j2, said parts constituting a forward curved terminal for the suspension-rod. The

hook or finger 7L of the aforesaid bar II is inserted in the aperture j2, whereby a iexible but sufficiently firm connection between the parts Hand J is provided, and at the same time they are allowed to be quickly separated without requiring the removal of.' bolts or pins.

The bars H and .I are provided with a stop or regulator to limit their backward movements. As shown, this consists of a chain K, and in order toprovide resiliency the chain is attached to a spring. lt. The regulatorspring is secured to the cross-bar F of the main frame, and the upper end of the chain is engaged with the aforesaid hook j on the bar J. By employing a chain like that at K I can apply the regulator or stop to the best advantage with respect to the leverage of the bar I-I and at the same time avoid the presence ofa long stop-bar, such as would be necessary to extend to the upper end of the part II. A stop is also provided to limit the forward movement of the bar J and the bar II. As shown the axle or parts attached thereto furnish such stop, as shown in Figs. l and 9. Each of the beams is provided with a set o1' parts such as described.

By examining the drawings it will be seen that the several movable parts are so arranged that when it is desired to elevate the beams or drag-bars at their rear ends it can be done by lifting on the bars J and pressing them forward. Such action throws forward also the bars Il, and when the beams are in their uppermost position the bars .T are inclined forward on such a line that they lio very nearly in the transverse vplane of tho pivot of the bottom hinge of the bars lI-in other words, they are very nearly held by a toggle-lock.

To assist in moving and holding the beams and the above-described parts, I combine therewith the following:

L indicates as a whole a spring device which is pivotally connected to the bar H near the pivot at its lower end, it comprising the spring propel', Z, and the notched adjustingbar Z. The spring is at its frontV end connected to a suitable holder, so that it will be adapted to tend to draw forward on the bar I-I and assist in counterbalancing and lifting the beam.

IOO

M is a bar which at one end is pivoted to the aforesaid extension h on the bar H and at the other end is formed with the hook fm, to which is attached the spring Z. This bar M can move longitudinally, it having a guide on the main frame at mf.

By examining Fig. 9 it will be seen that when the parts are in their working positions the force of the spring Z is neutralized because of the fact that the bar M is bearing against the extension h in, or nearly in, the line of the axis at t', around which the bar H rotates, and it will be also seen that as soon as the pivot-point at h2 gets below the said line (as it does the instant after a slight lifting pull 'is exerted in the bar J) the spring Z acts in a twofold way. to draw forward the bar H and to therefore lift up the bar J and its beam, one element of its action being a rforward pull from the spring itself and the other element being a pressure or push below the axis at t', resulting from the fact that 'the bar M is pushed endwise through its guide fm by the draft exerted by the forward end of the spring Z. Thus a powerful lifting force can be brought to' bear with a spring having at its end only one-half the travel that would be necessary if its forward end were fixed in relation to the main frame. This twofold or double action of the lifting-spring is not necessarily dependent upon the particular arrangement and location of the spring and the parts which are intermediate the spring and the beam (shown in the drawings) in order to eect the advantages just described. To secure these advantages, it is only necessary that the spring should have a movable support or attachment for each end and that such supports or attachments should be connected with the beam with more or less directness,. so that the force of the spring shall be transmitted through both its supports or attachments to the beam with a lifting effect from each. The movements referred to in speaking of the supports or attachments for the spring are movements relative to the main frame of the cultivator, which may be considered as being stationary so far as movements of parts which effeet the lifting of the beams are concerned. The spring-lifter at L is arranged along and acts on approximately horizontal lines. By thrusting against the handle j on the bar or lsuspension-rod J the bar or radius-arm H swings forward about its pivot at t', and thus through the suspension-rod J raises the particular gang-beam .to riding position. AS approach is made to such position the pivotal or loose connection at h at the free end of the bar or radius-arm H moves toward the line connecting the pivot ati with that at J 2. By proper adjustment the spring-lifterL remains in play until the final position ofrest is reached in the forward movement 0f the bar or radiusarmv H. The advance of the radius-arm toward its final position constantly lessens the tension of the spring-lifter. This loss is corrected by reason of the direction of the pull andthe point of attachment for the springlifter to the radius-arm. Being applied near the pivot of the arm, the short leverage of the lifter is exerted at best advantage during the traverse of the radius-arm past the vertical. Hence 4the counterbalaneing effect of the spring lifter remains practically uniform throughout the shift. On the contrary, if the shovels are forcedinto the soil from the position shown by Fig. 2 it is the spring stop or regulator H which comes more and more in play. As the beam is lowered the regulator K, with its long leverage upon radius-arm H at the hook j, exerts an increasing power, whereas the lifter L, although distended proportionately,exerts its force with lessenin g effeet.` The radius-arm is receding from the vertical, so that the attachment of the lifter at short leverage tends constantly to minimize its pulling action.

l. The combination of the main frame, the vertically-swinging plow-beams, the radiusbars pivoted to the main frame, the suspension-bars pivoted to the beams at points relatively near their rear ends, hin ge-like devices for connecting the suspension-bars to the radius-arms, and the lifting-springs each exerting a lifting force upon one of the radius-arms by pulling upon one side of its pivot-axis and by pushing upon the other side, substantially as set forth.

2. The combination of the main frame, thc vertically-swinging plow-beams, the radius arms or bars, H, extending upward from and pivoted to the main frame, the suspensionbars J pivoted to the beams at points relatively near their rear ends and detachably connected by hinge-like devices to the upper ends of the radius-bars, the yielding regulators, K, to govern the backward movement of the bars H and J, the lifting-springs, L, pulling forward on the bars or arms H, above their pivots, and the bars, M, connected to the springs L and bearing backward on the radiusarms below their pivots, substantially as set forth.

3. 'Ihe combination of the main frame, the vertically-swinging plow-beam pivotally supported at its front end, the lifting spring mechanism L, the radius-arm H hingedto and projecting upward from the main frame and connected to one end of the spring mechanism, L, the bar M connected at one end to the spring mechanism and at the other end to the arm H, and the suspension-bar J pivoted to the beam at a point in the rear of the front beam-pivot and extending upwardly therefrom and flexibly connected to the radiusarm H above the main frame, substantially as set forth.

4. The combination of the main frame, the vertically-swinging plow-beam pivotally supported at its front end, the suspension-bar J pivoted to the plow-beam at a point in rear of the front beam-'pivot and extending to a point IOO IIO

above the main frame and adapted to swing forward, a stop to limit the forward motion of said bar J, a lifting-spring arranged to draw forward the bar J, means for connecting said spring with said bar, and the movable bar M connected with the spring and aiding to move the bar J in said forward direction, substantially as set forth.

5. The combination of the main frame, the vertically-swinging plow-beam pivotally supported at its front end, the suspension-bar, J, pivotally connected to the plowbeam at a point in the rear of the front beam-pivot, the radins-bar, H, pivoted to the main frame and flexibly connected above said frame to the bar J, said bars, H and J, being adapted to be inclined forward and to lie in approximately coincident planes, a stop limiting the movement of said bars, and a spring lifting mechanism connected to said bars substantially as described and comprising means for exerting force both forward and backward relatively to the main frame to effect the lifting, substantially as set forth.

G. In a cultivator, the combination of the' beam, a radius-bar from which the beam is suspended, arranged to incline, from the vertical, toward the rear when the beam is in workin g position, and an approximately horizontal double-acting lifting spring mechanism connected at one end to the radius-bar near its fulcrum, whereby the efficiency of the spring increases, as to the direction in which its force is applied, during` the first part of the lifting of the beam, substantially as set forth.

7. In a cultivator, the combination with the main frame, of the vertically adjustable beam, the radius-arm, the suspension-rod connecting the beam and the radins-arm, and a double-acting lifting spring mechanism connected at one end with the radius-arm near its fulcrum, such connection moving away from a line which would include the fulcrum of the radius-arm and the other end of the spring, as the radius-arm is moved to lift the beam, substantially as set forth.

8. In a cultivator, the combination of the vertically adjustable beam pivotally suspended at its forward end, a radius-arm, a suspension-rod connecting the beam and the radius-arm and a double-acting spring mechanism havingacoiledlifting-spring connected at one end to the radius-bar, the relative disposition of the radius-bar and the spring being such that the efficiency of the spring, as to the direction in which its force is applied to the radius-bar, rapidly increases during the first part of the lifting operation, substantially as set forth.

9. The combination with a machine-frame, of a plow-beam, a suspension-bar extending upwardly therefrom, a rocking lifting-lever pivoted upon the machine-frame and connected with the suspension-bar, a beam-lifting spring, and means whereby said spring acts upon said lever at two different points and in substantially opposite directions to rock the same and lift the beam.

10. In a cultivator of the hammock type, the combination of the main frame, the plowbeam adjustable vertically and adapted to swing laterally at its rear end, the radius-bar or lever having a fulcrum on said frame and extending upward therefrom, means for suspending the beam from the upper part of said bar, a pulling member connected with said bar, and a pushing member connected with said bar, said members acting to give the beam an upward movement, and one of said members being a spring adapted to actuate the other member. j

11. In a cultivator of the hammock type, the combination of the main frame, the plowbeam connected with said frame to be adjustable vertically and swinging laterally, a radius-arm mounted on a fulcrum on said frame and extending upward therefrom to a relatively high point above said beam, means for connecting the beam and the upper part of said radius-arm, and two springs connected directly to, and above the fulcrum of, said radins-arm at different heights, the two lines of draft of said springs inclining toward each other and toward a point forward of the lower part of said radius-arm.

12. In a cultivator of the hammocktype, the combination of the main frame, and axle, the plow-beam connected with said frame to be adjustable vertically and swinginglaterally, a radius-arm mounted on a fulcrum on said frame and extending upward therefrom to a point relatively high above said beam, suspension means connecting the beam lwith the upper part of the radius-arm, said suspension means being at the rear of the axle and movable laterally at their lower ends, an approximately horizontal beam-liftin g spring connected with said radius-arm at a point near the fulcrum thereof, and a second and regulating spring acting on the beam when in the working position.

13. In a cultivator of the `hammock type the combination of the main framenand the axle B, the plow-beam connected with said frame to be adjustable upward and downward and swinging laterally, a radius-arm mounted on a fulcrum on said frame extending upward therefrom to a relatively high point above said beam, and movable forward from a position in rear ofsaid fulcrum as the beam is lifted, means at the rear of said axle for connecting the beam and the -upper part of said radius-arm, and a substantially horizontal spring having a connectionwith. said radiusarm near its fulcrum to force the arm forward.

14. In a cultivator of the class described, the combination With'the beam thereof, of the radius-arm, the lifting-sprin g arranged substantially horizontally and connected to the radius-arm near the fulcrum thereof, asecond spring for regulating the shovels when at work, and means for throwing the regulatingspring entirely ont of` action after the beam ICO IIO

commences to rise toward its uppermost position, substantially as set forth.

15.` In a cultivator of the class described, the combination of the beam, the radius-arm, the regulator-spring adapted to act upon the beam when in its working position, a liftingspring, and devices connecting one end of the lifting-spring with the radius-arm the conn ection of such devices with the radius-arm being movable to and away from a line which includes the fulcrum of the radius-arm and the end of the spring to which said connecting devices are united, substantially as set forth.

16. In a cultivator of the class described, the combination with the frame and beam thereof, of beam-suspendin g devices mounted by a suitable fulcrum on said frame, a liftingspring connected to said suspending devices, and adapted to vibrate to and from a line which is radial to the fulcrum of the suspending devices and includes the outer end of the spring, a second spring connected to said suspending devices, and adapted to regulate the shovels when in their working position, and means for throwing said second spring out of operation when the beam is lifted, substantially as set forth.

17. In a cultivator of the class described, the combination with the beam thereof and suspension-bar, of a radius-arm having two members projecting in different directions fromitsaxis,a regulator-springcontrolling the positions o'f the shovels when at Work and connected to one of the said members of the radius-arm, and a lifting-spring connected with the other member of said radius-arm, substantially as set forth.

18. In a cultivator of the class described, the combination with the beam thereof, of a radius-arm connected with the beam, a suspending rod for the beam, aspring, means for connecting the spring to the radius-arm on one side of its axis, means for connecting said spring to the radius-arm on the other side of its axis, whereby the spring can both push and pull around said axis, and a second spring connected to the beam-suspending devices and adapted to control the shovels when in working position, substantially as set forth.

19. The combination of the main frame, the plow-beam vertically adjustable relative to the frame, the radius-arm pivotally connected to the main frame and extending upward therefrom, means for suspending thebeam from the said radiusarm,the arm h connected to the radius-arm, the sliding bar pivoted to the arm h and adapted to press backward substantially on the line of the pivot of the radius-arm, and also below it, and the spring connected at one end to the sliding bar, and at the other end connected with the radiusbar, substantially as set forth.

20. In a cultivator of the class described, the combination of the beam-suspending rod, the radius-arm on the frame having a connection with said rod and an arm or extension extending below its fulcrum, the beam lifting or elevating spring, and vmeans for imparting pressure from the spring to the said arm or extension below the fulcrum to move the upper end of the radius-arm forward, substantially as setforth.

21. In a cultivator of the class described thc combination with the beam pivotallysupported at its front end, of a radius-arm, a beamsuspending rod pivoted to the beam at a point behind its front pivot and connected with the radius-arm, a lifting-spring, a pulling connection or attachment between one end of the spring and the radius-arm on one side of its fulcrum, and a pushing connection or attachment between the spring and the radius-arm and arranged to push on a line on the other side of the fulcrum from that on which the pulling connection operates, substantially as set forth.

22. In a cultivator, the combination, with the frame, of a beam pivotally supported near its front end, a radius-arm, a suspension-bar connecting the upper end of the radius-arm and the beam at a point in rear of the front beam-pivot, the radius-arm and suspensionbar being arranged to swing, whereby the beam is adj usted vertically, and a liftingspring having at each end movable connecting means with the beam, whereby the force of the spring is appliedfrom both its ends during the lifting operation, substantially as and for the purposes set forth.

23. The combination of the frame, the beam pivotally supported at its front end and vertically adjustable relative to the frame, a double-actingspring-lift mechanism for the beam, a movable support or attachment for one end of the spring, means connecting said support or attachment with the rear part of the beam, a movable support or attachment for the other end of the spring, and means for connecting the last said support or attachment also with the rear part of the beam at points behind the front beam-pivot,whereby the elastic force at each end of the spring is brought to bear upon the rear part of the beam, substantially as set forth.

24. The combination of the main frame, the vertically-adjustable beam, the coupling interposed between the front end of the beam and the frame, a double-acting spring lifting mechanism connected with the rear end of the beam, and comprisinga spring, a movable support or attachment for one end of the spring, and a movable support or attachment for the other end of the spring, a radius bar or arm pivoted to the main frame, means connecting the two movable spring supports or attachments to the radius-arm substantially as described, whereby the force of the spring as applied to the radius-arm through both of said supports or attachments tends to move it in one direction, and means independent of the said coupling for connecting the radiusarm to the cultivator-beam at a point in the rear of the coupling, substantially as set forth.

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25. The combination of the main frame, the and means for connecting both of said spring onltivator-beam pivotally supported at its supports or attachments with the beam at 01 front end, means for suspending the rear end nea': its rear end at points `behind the front of the beam whereby it is free to swing latbeam-pivot, substantially as set forth.

5 eraliy, a double-acting1 spring lifting meoht In testimony whereof I affix my signature I5 anism supported on the main frame and held in presence of two Witnesses.

against lateral movement, it comprising a JOHN B. BARTI'IOLOMEV. spring' and a movable support or attachment Vitnesses: :for each end of the spring, both of said sup- I S. D. WHITE,

ro ports being adapted to be moved by the spring, II. D. KELLENBACH. 

